/* Copyright (C) (2007) (Benoit Favre) <favre@icsi.berkeley.edu>

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License
as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */

#ifndef _MAPPED_H_
#define _MAPPED_H_

#include "utils/common.h"
#include "utils/string.h"

/**** comments :
   mmap() fails on length=0 or file size<length
   open(O_CREAT) needs attributes
*/

typedef struct mapped {
    void *data;
    int fd;
    size_t length;
    void *position;
} mapped_t;

mapped_t *mapped_new(const char *filename, size_t length);
void *mapped_resize(mapped_t *m, size_t length);
mapped_t *mapped_load(const char *filename);
mapped_t *mapped_load_readonly(const char *filename);
char *mapped_nextline(mapped_t *m);
string_t *mapped_readline(mapped_t *m);
char *mapped_gets(mapped_t *m, char *buffer, int size);
void mapped_free(mapped_t *m);

#endif
